Nim Deathmantle + Ashnod's Altar + Gutter Grime

Prerequisites

• You control at least one nontoken creature.

Steps

1. 1Activate Ashnod's Altar by sacrificing another nontoken creature, adding .
2. 2The creature dies, triggering Nim Deathmantle and Gutter Grime.
3. 3Resolve the Gutter Grime trigger, putting a slime counter on it and creating an X/X Ooze creature token.
4. 4Resolve the Nim Deathmantle trigger, causing you to pay to return the nontoken creature from your graveyard to the battlefield, and attach Nim Deathmantle to it.
5. 5Activate Ashnod's Altar by sacrificing the Ooze, adding .
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinitely large creature